<?php

/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2019/8/22
 * Time: 18:04
 */
class 阿拉伯数字转中文汉字
{

}
//去掉数字段前面的0
function del0($num){
    return "".intval($num);
}
//单个数字变汉字
function n2c($x){
    $arr_n = array("零","一","二","三","四","五","六","七","八","九","十");
    return $arr_n[$x];
}
//读取数值（4位）
function num_r($abcd)
{
    $arr= array();
    $str = ""; //读取后的汉字数值
    $flag = 0; //该位是否为零
    $flag_end = 1; //是否以“零”结尾
    $size_r = strlen($abcd);
    for($i=0; $i<$size_r; $i++){
        $arr[$i] = $abcd{$i};
    }
    $arrlen = count($arr);
    for($j=0; $j<$arrlen; $j++){
        $ch = n2c($arr[$arrlen-1-$j]); //从后向前转汉字
        if($ch == "零" && $flag == 0){ //如果是第一个零
            $flag = 1; //该位为零
            $str = $ch.$str; //加入汉字数值字符串
            continue;
        }elseif($ch == "零"){ //如果不是第一个零了
            continue;
        }
        $flag = 0; //该位不是零
        switch($j) {
            case 0: $str = $ch; $flag_end = 0; break; //第一位（末尾），没有以“零”结尾
            case 1: $str = $ch."十".$str; break; //第二位
            case 2: $str = $ch."百".$str; break; //第三位
            case 3: $str = $ch."千".$str; break; //第四位
            case 4: $str = $ch."万".$str; break; //第五位
            case 5: $str = $ch."十".$str; break; //第六位
            case 6: $str = $ch."百".$str; break; //第七位
            case 7: $str = $ch."千".$str; break; //第八位
        }
    }
    //如果以“零”结尾
    if($flag_end == 1) {
        mb_internal_encoding("UTF-8");
        $str = mb_substr($str, 0, mb_strlen($str)-1); //把“零”去掉
    }
    return $str;
}
function num2ch($num) //整体读取转换
{
    $num_real = del0($num);//去掉前面的“0”
    $numlen = strlen($num_real);
    echo "numlen=".$numlen."";
    if($numlen >= 9)//如果满九位，读取“亿”位
    {
        $y=substr($num_real, -9, 1);
        //echo $y;
        $wsbq = substr($num_real, -8, 4);
        $gsbq = substr($num_real, -4);
        $a = num_r(del0($gsbq));
        $b = num_r(del0($wsbq))."万";
        $c = num_r(del0($y))."亿";
    }elseif($numlen <= 8 && $numlen >= 5) //如果大于等于“万”
    {
        $wsbq = substr($num_real, 0, $numlen-4);
        $gsbq = substr($num_real, -4);
        $a = num_r(del0($gsbq));
        $b = num_r(del0($wsbq))."万";
        $c="";
    }elseif($numlen <= 4) //如果小于等于“千”
    {
        $gsbq = substr( $num_real, -$numlen);
        $a = num_r(del0($gsbq));
        $b="";
        $c="";
    }
    $ch_num = $c.$b.$a;
    return $ch_num;
}

echo num_r("93963963")."<br>";
// 注意：最大千万
